Toxic units (TU) are used in the field of toxicology to quantify the interactions of toxicants in binary mixtures of chemicals. A toxic unit for a given compound is based on the concentration at which there is a 50% effect (ex. EC50) for a certain biological endpoint. One toxic unit is equal to the EC50 for a given endpoint for a specific biological effect over a given amount of time. Toxic units allow for the comparison of the individual toxicities of a binary mixture to the combined toxicity. This allows researchers to categorize mixtures as additive, synergistic or antagonistic. Synergism and antagonism are defined by mixtures that are more or less toxic than predicted by the sum of their toxic units. Contaminants are frequently present as mixtures in the environment. Regulatory decisions are based on mixture toxicity models that assume additivity, which can result in under or overestimation of toxic effects. Refining our understanding of mixture interactions can lead to better informed environmental management and decision making. In addition, exploring mixture interactions can elucidate the mechanisms of action for specific toxicants which, in many cases, are poorly understood. (Wikipedia).
More Standard Deviation and Variance
Further explanations and examples of standard deviation and variance
From playlist Unit 1: Descriptive Statistics
Dihydrogen Monoxide - Lethal Everyday Chemical
Dihydrogen Monoxide is a chemical that is available to small children without special permission. It can be lethal in small doses, and causes millions of dollars in damage to the environment and personal property each year. Be careful when dealing with this dangerous chemical.
From playlist April Fool's Day Favorites
How to Handle Toxic People Discover The 4 Emotions You Need To Make a Killer First Impression: http://bit.ly/2LFJ3ah Subscribe to Charisma On Command’s YouTube Account: http://bit.ly/COC-Subscribe Hey, guys! Here's another video for you on how to handle toxic people from friends to f
From playlist Fan Q&A
Which Gases are the Most Toxic?
Support the Channel on Patreon - https://www.patreon.com/thatchemist Join the Community Discord! - https://discord.gg/thatchemist
From playlist Chemistry Tierlists
Percentiles, Deciles, Quartiles
Understanding percentiles, quartiles, and deciles through definitions and examples
From playlist Unit 1: Descriptive Statistics
To start using Tab for a Cause, go to: http://tabforacause.org/minuteearth2 Burning a marshmallow can release more energy than detonating an equal mass of TNT...so why isn't a marshmallow as dangerous? LEARN MORE ************** To learn more about this topic, start your googling with the
From playlist MinuteEarth
Determining values of a variable at a particular percentile in a normal distribution
From playlist Unit 2: Normal Distributions
Which Incapacitating Agent is the Most Effective?
This time, we're ranking incapacitating agents! The term incapacitating agent is defined by the United States Department of Defense as: "An agent that produces temporary physiological or mental effects, or both, which will render individuals incapable of concerted effort in the performance
From playlist Chemistry Tierlists
Module 3: Toxicology M3B MoDRN Toxicology In this module Prof. Anastas introduces basic concepts of toxicity and molecular basis of hazard.
From playlist Introduction to Green Chemistry, Module 3
Rasa Livecoding: Handling Toxic Language
(Warning: this stream will contain toxic language.) Now we've got some user-provided data to work with and it's time to start improving our assistant. First up: handling toxic language. What's livecoding? It's folks working on real projects in real time with help from you, the audience! E
From playlist Live Coding
The biology of Alzheimer’s – and what we might do to cure it | Lou Reese | Big Think
The biology of Alzheimer’s – and what we might do to cure it New videos DAILY: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Alzheimer'
From playlist Best Videos | Big Think
Urban Mining and Disease Burden
Recorded on October 13, 2014. One Troy ounce (31 grams) of gold now sells for ~ $1,200 on the open market. The annual production of electronic products worldwide requires more than 300 tons of gold and more than 7,500 tons of silver, with a combined value of $21 billion. Currently, less t
From playlist Public Health: Graduate Seminars (2013 - 2015)
Learn more: https://e2eml.school/221 at the End to End Machine Learning School
From playlist E2EML 191. How Selected Models and Methods Work
Harmful speech and content moderation preference on social media
Speaker: Professor Yannis Theocharis, Professor of Digital Governance, Department of Governance, Technical University of Munich
From playlist Trustworthy digital identity
Fighting Bioterrorism with Chemistry: Irreversible Inhibition of Botulinum Neurotoxin A
A medicinal chemistry minilecture on the Irreversible inhibition of BoNT/A protease: proximity-driven reactivity contingent upon a bifunctional approach by Lewis D. Turner, Alexander L. Nielsen, Lucy Lin, Sabine Pellett, Takashi Sugane, Margaret E. Olson, Eric A. Johnson and Kim D. Janda*
From playlist Medicinal Chemistry
Dominique Barbolosi : Exemples de modélisation mathématiques en médecine - Partie 1
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Mathematical Aspects of Computer Science
Can We Launch Nuclear Waste Into the Sun? Why This is a Terrible Idea
We've got all this nuclear waste to dispose of, and we've got this superheated fusion ball in the sky. Couldn't we just blast our nuclear waste into the Sun and be done with it? Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Follow us on
From playlist SpaceX
Which Neurotoxin is the Worst?
Go to https://strms.net/hellofresh_that_chemist-1067 and use code POGCHEMISTMAR60 for my special HelloFresh discount and to support my channel! #ad ————————————————— In this video, we explore several nerve-racking chemicals and discuss the biomechanics of nerves. I used to be a mouthpipet
From playlist Chemistry Tierlists
Which Common Chemical is the Most Toxic?
In this video, I rank several common reagents that are so toxic, they could kill you. This video is a reupload. Support the Channel on Patreon: https://bit.ly/3yQjgYC Join the Community Discord! - https://discord.gg/thatchemist
From playlist Chemistry Tierlists